<?php
function wpsc_fs_admin_notice() {

	if( wpsc_fs_check_options_exist() )
		wpsc_fs_update_options();

}
add_action( 'admin_notices', 'wpsc_fs_admin_notice' );

function wpsc_fs_update_options() {

	$options = array();
	$options[] = array( 'old_name' => 'position' );
	$options[] = array( 'old_name' => 'display_productspage' );
	$options[] = array( 'old_name' => 'display_singleproduct' );

	$old_prefix = 'vl_wpscfs';
	$new_prefix = 'wpsc_fs';

	wpsc_vl_migrate_prefix_options( $options, $old_prefix, $new_prefix );

}

?>